Apparatus for making gas and coking.



PATENTED JAN. 1, 1907.

- APPLIUATION FILED MAY 3, 1904.

cum. 0. c.

LEON P. LOWE, OF SAN FRANCISCO, CALIFORNIA.

APPARATUS FOR MAKING GAS AND COKING.

Specification of Letters Patent.

Patented Jan. 1, 1907.

Application filed May 3, 1904. Serial No. 206,246.

To all whom it may concern.-

Be it known that I, LEON P. LowE, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented certain new and useful Improvements inApparatus for Making Gas and Coking, of Which the following is aspecification.

This invention relates to an improved a paratus for coking, and isespecially valuabIe for utilizing for this purpose the tarry residuesfrom gas-making. Heretofore these residues have been used for feedingfurnaces.

The object of my invention is to provide a more economical apparatusutilizing the same.

In my improved apparatus I separate said tarry residues into hydrocarbongases and coke, and I therefore not only utilize the heat of combustionof the hydrocarbon gases for any desired urpose, as for heatingrefractory material for as-making or otherwise or use said hydrocar ongases directly as commercial gas, but in addition I obtain a valuablecommercial productnamely, coke.

In said drawing the figure is a vertical section of a gas-generatingapparatus.

Referring to the drawing, 1 represents a casing lined with refractorymaterial 2. Upon arches 3 are supported loose piles of refractorymaterial 4. The lower portion of said casing below said arches forms acombined coking and combustion chamber 5, into which bituminous coal orthe tarry and other carbonaceous residues from gas-making may be fedthrough the door 6.

7 is a steam-supply pipe; 13, an oil-supply pipe, and 8 an air-supplypipe for burning oil at the burner 14 above said coal or tarry residuesin said coking-chamber.

9 is a flue closed by a valve 10, leading to the stack 11'.

12 is a pipe for conducting off the gas gen erated in the casing.

15 is a door Which is opened to remove the coke.

The operation is as follows: Coal or tarry residues having been fed intothe cokingchamber, oil is admitted to the oil-burner l4 and air issupplied for combustion of said oil. The flames and hot gases arisingfrom the combustion of the oil pass through the arches 3 and highly heatthe same. The residues in the coking-chamber are thus coked by theradiant heat from the arches 3 of said chamber and also by thecombustion of the oil and of the gases arising during the heating ofsaid residues, as in the beehive process of making gas from bituminouscoal, sufiicient air being supplied for the combustion of said gas. Theproducts of combustion of the oil and gases after highly heating saidarches 3 pass through the piles of refractory material 4, highly heatingthe same and then escaping by the flue 9 and stack 11. The air is nowshut oif, the valve 10 is closed, and steam and oil are passed by thepipes 7 and 13 through the highly-heated refractory material, making gastherefrom in the usual manner. At the same time the gas which continuesto be distilled from the coal or tarry residues is added to the gas thusformed and with said gas is conducted by the pipe 12 to the washers andscrubbers in the usual manner.

By this apparatus the tarry residues are utilized more economically thanheretofore, as their heat values assist in gas-making, and coke isobtained as a product of the process. However, the apparatus may also beused as a means of coking from coal.

I claim- An apparatus of the character described, comprising a casinghaving therein an open roof and unobstructed from said roof to thebottom to form a coking and combustion chamber, and loosely-piledrefractory mate rial upon said roof, a discharge-door at the bottom ofsaid coking-chamber to remove coke therefrom, a feed-door at a higherlevel than the discharge-door for feeding coal or tarry residues intosaid coking-chamber, an oil-burner discharging directly into saidcoking-chamber not lower than the level of the feed-door, a flue at theother end of the appa ratus through which ass the products of combustionafter passing through the open roof and loosely-piled refractorymaterial to heat the same, means for shutting off the airsupply to saidoil-burner, means for supplying oil and steam and passing them throughthe loosely-piled refractory material to generate gas, and anindependent conduit for leading oif the gas so formed, substantially asdescribed.

In witness whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

L. P. LOWE.

